need information about backups
Hi, guys. I am lost with all readings about backups. I have 2 questions:
1. if i need to backup the entire internal disk (apps, mac os, files etc.) so i will have a copy in case i get my internal hard drive damaged during repair what kind of backup do I have to use?
2. if i need a backup that i would like to update some times. Say i backed up my files, then i worked for one month, and i want to update changes to my backup (kinda up to date) what backup do I have to use?
MacBook Pro, OS X Mavericks (10.9.2)